The Indian construction industry is booming and should reach 1.4 trillion USD by 2025. Rapid urbanisation, major infrastructure projects, and increased demand for commercial and industrial spaces drive this growth. Pre-engineered and pre-fabricated buildings are becoming popular because of their affordability and speed of construction. Several people use these terms interchangeably, but there is a subtle difference between the two. This blog explores the differences between pre-engineered and prefabricated buildings.
Table of Content
- Definition and Overview
- Construction
- Customisation and design flexibility
- Cost considerations
- Construction time
- Applications
- Conclusion
Definition and Overview
Pre-engineered buildings
Pre-engineered buildings take the concept of pre-fabricated buildings a step further. These buildings use pre-fabricated components specifically designed to meet site conditions, such as the structural loads and the building codes. Sophisticated software ensures the building’s structural integrity. Typically, manufacturers use steel to make various components in pre-engineered buildings.
Pre-fabricated buildings
Pre-fabricated buildings, or prefabs, are designed and manufactured by companies in a factory and then assembled on-site. Workers build components such as walls, columns, and roof trusses in the factory under controlled conditions to ensure quality and reduce construction time. They make components from either steel, wood, or concrete. We can use prefab buildings for residential, commercial, and industrial applications.
Learn more about the components and advantages of prefabricated structures.
Construction
Pre-engineered buildings
PEBs undergo rigorous engineering analysis before fabrication. This meticulous design ensures optimal structural integrity and facilitates seamless on-site assembly. Manufacturers manufacture PEB components in a controlled factory setting, utilizing advanced CAM and CAD technologies, ensuring precise dimensional tolerances and quality components.
Prefabricated buildings
Prefabricated buildings consist of prefabricated modules or panels manufactured off-site using standardized specifications. This approach facilitates efficient mass production. The prefabricated modules are transported on-site for rapid assembly using cranes and other appropriate equipment.
Customisation and design flexibility
Pre-engineered buildings
Due to their custom-engineered nature, pre-engineered buildings offer a high degree of design freedom. We can tailor layout, size, and aesthetics to meet specific project requirements, allowing for several architectural possibilities.
Prefabricated buildings
Prefabricated buildings offer a more limited design flexibility compared to PEBs. Their modular construction restricts the variety of layouts and configurations achievable. However, some customisation options exist, such as pre-defined layout variations, colour selections, and finishing choices.
Cost considerations
Pre-engineered buildings
Pre-engineered buildings offer a significant economic advantage over traditional construction methods. Standardised designs and streamlined manufacturing processes optimise material usage and reduce labour costs. Industry reports indicate that PEBs can be up to 30% more cost-effective compared to conventional building techniques.
Read our case study on how our client saved significant costs while instilling pre-engineered buildings at their works.
Pre-fabricated buildings
Pre-fabricated buildings are also a cost-competitive alternative to traditional construction. However, they are generally less cost-effective than PEBs due to increased on-site labour requirements and additional materials needed for assembly. Prefab buildings offer an advantage of 20% over traditional buildings.
Construction time
Pre-engineered buildings
PEBs boast significantly reduced construction times compared to traditional methods. Streamlined manufacturing and assembly processes enable PEBs to be erected in a fraction of the time. Industry statistics show that PEBs can be completed up to 50% faster, allowing you to begin operations much sooner.
Pre-fabricated buildings
Prefabricated buildings also offer faster construction times compared to traditional buildings. While on-site assembly adds some time compared to PEBs, they can still be erected up to 40% quicker than traditional methods. This translates to a significant advantage in getting your project completed faster.
Applications
Pre-engineered buildings
Pre-engineered structures are typically used for:
- Factories
- Warehouses
- Hangers for aeroplanes
- Commercial buildings
They are ideal for large-scale industrial projects where speed, efficiency, and cost-effectiveness are crucial factors.
Pre-fabricated buildings
We use prefab buildings for residential, commercial, and industrial construction. Some applications may include
- Schools
- Hospitals
- Offices
- Homes
They are perfect for projects where sustainability, cost-effectiveness, and construction speed are crucial factors.
Conclusion
Prefabricated and pre-engineered buildings offer benefits in efficiency, affordability, and quality control. Choosing between these two methods depends on factors such as the desired level of customisation, project needs, budget, and site conditions. Prefabricated buildings provide a simplified modular approach suitable for certain purposes, while pre-engineered buildings offer greater customisation and flexibility.
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